TOP-SECRET • FREE-TRANSLATOR.COM • Definition of Top-secret

... tried bravely not to show it. He felt slightly guilty, too, as he always did when he popped into O'Connor's office without bothering to stay space-bound. By law, after all, he knew he should check in and out at the main gate of the huge, ultra-top-secret Government reservation whenever he visited Yucca Flats. But that meant wasting a lot of time and going through a lot of trouble. Malone had rationalized it out for himself that way, and had gotten just far enough to do things the quick and easy way and not quite far enough to feel undisturbed about ...

— Supermind • Gordon Randall Garrett